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High temeprature and pressurized water vapor preparing porous ceramic device

A technology of porous ceramics, high temperature and pressure, applied in the direction of steam superheating, steam generation, lighting and heating equipment, etc., to achieve the effect of flexible operation, convenient inspection and maintenance, and high heat recovery rate

Inactive Publication Date: 2006-10-18
DALIAN UNIV OF TECH
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Problems solved by technology

To produce water vapor at a higher temperature, the superheater system is generally used to heat the steam. However, due to the high temperature characteristics of the material and the pressure bearing capacity of the pipeline, the temperature of the superheated steam is generally around 600 ° C, which results in the use of high temperature steam. bottlenecks in industrial production

Method used

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  • High temeprature and pressurized water vapor preparing porous ceramic device

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Embodiment Construction

[0009] The specific embodiments of the present invention will be described in detail below in conjunction with the technical solutions and accompanying drawings.

[0010] The working process of porous ceramic chamber A:

[0011] When the four-way reversing valve S is in state a, gas / fuel is sprayed into the combustion chamber from the nozzle M1 and burned, heating the porous ceramic chamber A. Since the pressure in the combustion chamber is lower than the pressure of the high-temperature pressurized water vapor, the valve P1 is closed and the valve P2 is opened. The high-temperature flue gas enters the porous ceramic chamber A, fully contacts with the porous ceramic and conducts efficient heat exchange. During this process, the high-temperature flue gas transfers heat to the porous ceramics to the limit, and the temperature of the flue gas drops rapidly to 150-200°C and then exits the system. At this time, the reversing valve S operates, and it is in state b. At this time, l...

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Abstract

The present invention belongs to the field of heat accumulating heat exchange technology, and is one kind of porous ceramic device for preparing high temperature and pressurized water vapor. The porous ceramic device includes two porous ceramic heat accumulating chambers, one four-way change valve and two pneumatic closing valves. The high temperature fume heats the porous ceramic honeycomb heat accumulating chambers through heat exchange with porous ceramic, and the low temperature saturated water vapor flows in the porous ceramic heat accumulating chambers in the direction opposite to that of the fume to become high temperature overheat water vapor through heat exchange with the porous ceramic, so as to produce high temperature and pressurized water vapor in stable flow rate.

Description

technical field [0001] The invention belongs to the technical field of regenerative heat exchange, and relates to a device for preparing porous ceramic high-temperature pressurized water vapor. Background technique [0002] In industrial production, high temperature water vapor is sometimes used. In the fields of chemical industry, thermal energy, environmental protection, hydrogen production, metallurgy, etc., the dependence on high-temperature water vapor is even more indispensable. But at this stage, it is very difficult to produce high-temperature superheated steam (temperature greater than 600°C), and there are few reports on the production process for continuously producing large quantities of steam. Most of the water vapor commonly used in industry is saturated water vapor produced under high pressure, and its theoretical limit temperature is only 374.15°C. To produce water vapor at a higher temperature, the superheater system is generally used to heat the steam. Ho...

Claims

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Application Information

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IPC IPC(8): F22G3/00F28D17/02
Inventor 李爱民高宁博
Owner DALIAN UNIV OF TECH
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